Added redline theme, based on powerline

redline:
- added redline features to powerline
- added screenshot
- updated redline readme
- bugfix: resetting foreground color when distro logo is enabled
- fixed redline default element ordering

powerline:
- neater check for cached sudo
- started adding support for custom cwd separator glyph and color

bash-it:
- added sublime text to .gitignore

.gitignore

@@ -12,3 +12,5 @@ plugins/custom.plugins.bash
 .*.un~
 bats
 .idea
+*.sublime-workspace
+*.sublime-project